Gas Furnaces

Furnace service.

Chaves Heating & Air Conditioning, Inc. provides superior heating services in Hudson, MA and surrounding communities. We are the leading company for all of your heating needs. If you are in need of repairs, maintenance, or a brand new system, the technicians and consultants at Chaves are the qualified professionals for the job.
In addition to providing the highest quality of service, we aim to educate our customers - informed decisions are good decisions. It is important that you have confidence in our ability to perform the service for which you are hiring us. Call us or request service online.

How Much Money Can a New Furnace Save You?

Our AFUE energy savings calculator can help determine how much you could save on your utility bills. Simply enter your current unit's AFUE value and compare it to a newer, more efficient system. You can even customize it to better match your home's system for a more accurate calculation.

AFUE Energy Savings Calculator

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This calculator does not guarantee actual costs or savings and is only to be used for educational purposes.

Customize to Your Home

Adjust these settings for a more accurate calculation:




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Historical Comparison

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** Data from U.S. Energy Information Administration
*** Data from 2002 EPA study

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Furnace Repair

Don't get left in the cold! Our team is here to keep your home warm and cozy. We repair all makes and models of gas and propane furnaces. Our technicians are honest, hard working, and always transparent about the work we do.

Furnace Replacement

Sometimes a repair is not sufficient to fix your furnace. At times a new furnace is the most cost and energy efficient solution. Performing repairs or service on a system in need of replacement is counter productive and costly. We will always help you to determine whether a repair or replacement is the best option.

If you do need a furnace replacement, we know how overwhelming it can be. Here are some of the frequently asked questions about furnaces that we get from some of our Hudson, MA residents:

What Are The Different Types Of Furnaces?

Single Stage: A single-stage furnace has only one stage of operation. It can either be turned on or turned off.

Two Stage: A two stage furnace has two settings - full and half speed. This is a more efficient way to hear and provides more comfort by moving air at a slower pace.

Variable Stage or Modulating: Modulates the speed and heat output based on the temperature outside and the desired comfort level inside. This type of furnace is the most efficient as it only works as much as you need it to.

What Is AFUE?

AFUE, or Annualized Fuel Utilization Efficiency, is a measure of furnace-heating efficiency. The higher the AFUE, the more efficient the furnace.

What Size Furnace Do I Need?

We can calculate an appropriately sized furnace by determining how many BTU’s (British Thermal Units) are required to heat your home. Contrary to what you might think, a bigger furnace does not necessarily mean better or more heating power. Call us at Chaves HVAC, and we can set up an appointment to calculate the furnace size you might need.

Gas Furnace Maintenance in Marlborough, MA, 01752

“Very professional”
- Richard F.

Gas Furnace Maintenance in Hudson, MA, 01749

“Eric did a great job with out furnace checkup. Completed work and left work area cleaned up. Also explained everything and helped with question on filters and sizes.”

- Jeff H.

Gas Furnace Maintenance in Marlborough, MA, 01752


- K.

Gas Furnace Repair in Hudson, MA, 01749

“Matt was fantastic!! What a nice guy. Informed me of my furnace problem and answered all of my questions. Very Happy with Chaves!”

- Linda P.

Gas Furnace Maintenance in Southborough, MA 01772

“Excellent service. Technician was courteous and knowledgeable.”

- Manuel T.

Gas Furnace Maintenance in Marlborough, MA, 01762

“Rob was very efficient and helpful. I hope to see him again.”

- Arthur E N.

Gas Furnace Maintenance in Hudson, MA, 01749

“Eric M was on time, courteous and answered any questions I had.”

- Paul C.

Gas Furnace Maintenance in Sudbury, MA 01776

“Very nice and knowledgeable technician”

- Barbara C.

Gas Furnace Maintenance in Westborough, MA 01581

“Very satisfied with the service provided by Chaves, from installation to maintenance”

- Mario P.

Gas Furnace Maintenance in Sudbury, MA, 01776

“Technician Matt Coyle was efficient, extremely knowledgeable, courteous, inspired confidence…a very positive experience, thank you”

- Stella G.

Need Furnace Service?

Contact the experts at Chaves HVAC.

Call us at 978-562-5309!